ADC 450428 User Manual

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ML-130

 

Service Manual

 

Phase 6 Microprocessor

 

Timer Controls

 

American Dryer Corporation

 

88 Currant Road

 

Fall River, MA 02720-4781

 

Telephone: (508) 678-9000 /Fax: (508)678-9447

 

e-mail: techsupport@amdry.com

121099DMG/tcosta

ADC Part No. 450428

Retain This Manual In A Safe Place For Future Reference

American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product is properly maintained, it will provide many years of safe, efficient, andtrouble-freeoperation.

ONLY qualified technicians should service this equipment.

OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation/operator's manual included with the dryer.

The following “FOR YOUR SAFETY” cautionmust be posted near the dryer in a prominent location.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.

POUR VOTRE SÉCURITÉ

Ne pas entreposer ni utiliser d’essence ni d’autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ou de yout autre appareil.

We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the right to make changes from time to time, without notice or obligation, in prices, specifications, colors, and material, and to change or discontinue models.

Important

For your convenience, log the following information:

DATE OF PURCHASE

 

MODEL NO.

DISTRIBUTORS NAME

Serial Number(s)

ML-130

Replacement parts can be obtained from your distributor or the ADC factory. When ordering replacement parts from the factory, you can FAX your order toADC at (508)678-9447or telephone your orders directly to theADC Parts Department at (508)678-9000.Please specify the dryermodel number andserial number in addition to thedescription andpart number, so that your order is processed accurately and promptly.

The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a composite from the various dryer models. Be sure to check descriptions of the parts thoroughly before ordering.

“IMPORTANT NOTE TO PURCHASER”

Information must be obtained from your local gas supplier on the instructions to be followed if the user smells gas. These instructions must be posted in a prominent location near the dryer.

IMPORTANT

YOU MUST DISCONNECT and LOCKOUTTHE ELECTRIC SUPPLYand THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROMTHE MACHINETOALLOWACCESS FOR CLEANING,ADJUSTING, INSTALLATION, or TESTING OFANY EQUIPMENT per OSHA (Occupational Safety and Health Administration) STANDARDS.

“Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper operation.”

«Attention: Lor des opérations d’entretien des commandes étiqueter tous fils avant de les déconnecter. Toute erreur de câblage peut étre une source de danger et de panne.»

CAUTION

DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION.

WARNING

CHILDREN SHOULD NOT BEALLOWED TO PLAYON OR NEAR THE DRYER(S). CHILDRENSHOULD BE SUPERVISED IFNEAR DRYERS IN OPERATION.

FOR YOUR SAFETY

DO NOT DRY MOP HEADS IN THE DRYER.

DO NOT USE DRYER IN THE PRESENCE OF DRYCLEANING FUMES.

WARNING

UNDER NO CIRCUMSTANCES should the door switch or the heat circuit devices ever be disabled.

WARNING

The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY or FIRE COULD RESULT.

WARNING

DRYER MUST NEVER BE OPERATED WITHOUTTHE LINT FILTER/SCREEN IN PLACE, EVEN IFAN EXTERNALLINT COLLECTION SYSTEM IS USED.

IMPORTANT

PLEASE OBSERVEALLSAFETYPRECAUTIONS displayed on the equipment and/or specified in the installation and operator's manual included with the dryer.

Dryers must not be installed or stored in an area where it will be exposed to water or weather.

The wiring diagram for the dryer is located in the front electrical control box area.

Table of Content

 

SECTION I

 

IMPORTANT INFORMATION ...............................................................................

3

A. Safety Precautions ......................................................................................................................

3

SECTION II

 

ROUTINE MAINTENANCE ....................................................................................

5

A. Cleaning .....................................................................................................................................

5

B. Adjustments ...............................................................................................................................

6

C. Lubrication .................................................................................................................................

6

SECTION III

 

INSTALLATION REQUIREMENTS ......................................................................

7

A. Enclosure,Air Supply, and Exhaust Requirements ........................................................................

7

B. Electrical and Gas Requirements .................................................................................................

7

C. Operational Service Check Procedure ........................................................................................

8

SECTION IV

 

DESCRIPTION OF PARTS ...................................................................................

10

A. Control Box .............................................................................................................................

10

B. Drive Motor .............................................................................................................................

10

C. HSI (Hot Surface Ignition) Module (Gas Models Only) .............................................................

10

D. Gas BurnerAssembly ...............................................................................................................

11

E. Blower Motor and Impellor ......................................................................................................

11

F. IdlerAssembly ..........................................................................................................................

11

G. Tumbler (Basket) Bearing and PulleyArrangement .....................................................................

12

H. Tumbler (Basket) ......................................................................................................................

12

I. Main Door Switch ....................................................................................................................

12

J. Sail Switch (Gas and Electric Models Only) ..............................................................................

13

K. Hi-Limit (Gas and Electric Models Only) ...................................................................................

13

L. Manual Reset Thermostat .........................................................................................................

13

M. Lint Drawer ..............................................................................................................................

14

N. Lint Drawer Switch ...................................................................................................................

14

O. Steam Damper System .............................................................................................................

14

SECTION V

 

SERVICING ..............................................................................................................

15

A. Computer Controls ...................................................................................................................

15

B.

Ignition Controls .......................................................................................................................

17

C. Thermostats ..............................................................................................................................

21

D. Sail SwitchAssembly (Gas and Electric Models Only) ...............................................................

23

E. Front Panel and Main DoorAssemblies .....................................................................................

23

F.

Pulleys ......................................................................................................................................

26

G.

Tumbler (Basket)Assembly ......................................................................................................

28

H. Bearings ...................................................................................................................................

30

I.

V-Belts .....................................................................................................................................

32

J.

Motors .....................................................................................................................................

33

K. Impellor ....................................................................................................................................

34

L.

Lint DrawerAssembly ..............................................................................................................

34

SECTION VI

 

TROUBLESHOOTING ...........................................................................................

35

SECTION VII

 

PHASE 6 OPL SYSTEM DIAGNOSTICS ...........................................................

39

A. Diagnostic (L.E.D. [light emitting diode] Display) Failure Codes .................................................

39

B. L.E.D. (light emitting diode) Display Indicators ..........................................................................

41

C. Phase 6 OPL Microprocessor Controller (Computer) Relay Output L.E.D. (light emitting diode)

 

 

Indicators .................................................................................................................................

42

D. L.E.D. Codes ...........................................................................................................................

46

E. Computer Logic andWiring Diagram ........................................................................................

48

SECTION VIII

 

TECHNICAL INFORMATION ..............................................................................

54

A. Motor Plate (High and Low Voltage) .........................................................................................

54

B. Data Label ...............................................................................................................................

55

C. How to Use a Manometer ........................................................................................................

56

D. Tool List ...................................................................................................................................

57

SECTION I

IMPORTANT INFORMATION

A. SAFETY PRECAUTIONS

WARNING: For your safety, the information in this manualmust be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury, or loss of life.

WARNING: The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY or FIRE COULD RESULT.

1.DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

2.Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the user smells gas. The instructions should be posted in a prominent location.

3.WHAT TO DO IF YOU SMELL GAS...

a.DO NOT try to light any appliance.

b.DO NOT touch any electrical switch.

c.DO NOT use any phone in your building.

d.Clear the room, building, or area of ALL occupants.

e.Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

f.If you cannot reach your gas supplier, call the fire department.

4.Installation and service must be performed by a qualified installer, service agency, or gas supplier.

5.Dryer(s) must be exhausted to the outdoors.

6.Although ADC produces a very versatile machine, there are some articles that, due to fabric composition or cleaning method,should not be dried in it.

WARNING: Dry onlywater-washedfabrics.DO NOT dry articles spotted or washed in dry cleaning solvents, a combustible detergent, or “ALL purpose” cleaner.

EXPLOSION COULD RESULT.

WARNING: DO NOT dry rags or articles coated or contaminated with gasoline, kerosene, oil, paint, wax.

EXPLOSION COULD RESULT.

3

WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a fire hazard.

WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or similarly textured rubber materials. Drying in a heated tumbler (basket) may damage plastics or rubber and also may be a fire hazard.

7.A program should be established for the inspection and cleaning of lint in the heating unit area, exhaust duct work, and inside the dryer. The frequency of inspection and cleaning can best be determined from experience at each location.

WARNING: The collection of lint in the burner area and exhaust duct work can create a potential fire hazard.

8.For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the National Electrical Code ANSI/NFPA NO.70-LATESTEDITION or in Canada, the Canadian Electrical Codes Parts 1 & 2 CSAC22.1-1990or LATEST EDITION.

NOTE: Failure to do so willVOID THE WARRANTY.

9.UNDER NO CIRCUMSTANCES should the dryer door switches, lint door switch, heat safety circuit ever be disabled.

WARNING: PERSONALINJURY or FIRE COULD RESULT.

10.This dryer is not to be used in the presence of dry cleaning solvents or fumes.

11.Remove articles from the dryer as soon as the drying cycle has been completed.

WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can create a fire hazard.

12.DO NOT operate steam dryers with more than 125 PSI (8.61 bars) steam pressure. Excessive steam pressure can damage steam coil and/or harm personnel.

13.Replace leaking flexible hoses or other steam fixtures immediately. DO NOT operate the dryer with leaking flexible hoses.PERSONAL INJURY MAY RESULT.

14.READ and FOLLOW ALL CAUTION and DIRECTION LABELS ATTACHED TO THE DRYER.

WARNING: YOU MUST DISCONNECT and LOCKOUTTHE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFOREANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOWACCESS FOR CLEANING,ADJUSTING, INSTALLATION, or TESTING OFANY EQUIPMENT per OSHA(Occupational Safety and HealthAdministration)

STANDARDS.

4

SECTION II

ROUTINE MAINTENANCE

A. CLEANING

A program and/or schedule should be established for periodic inspection, cleaning, and removal of lint from various areas of the dryer, as well as throughout the duct work system. The frequency of cleaning can best be determined from experience at each location. Maximum operating efficiency is dependent upon proper air circulation. The accumulation of lint can restrict this airflow. If the guidelines in this section are met, anADC dryer will provide many years of efficient, trouble free, and – most importantly – safe operation.

WARNING: LINT FROM MOST FABRICS IS HIGHLY COMBUSTIBLE. THE ACCUMULATION OF LINT CAN CREATEAPOTENTIALFIRE HAZARD.

WARNING: KEEPDRYERAREACLEAR and FREE FROM COMBUSTIBLE

MATERIALS, GASOLINE, and THEIR FLAMMABLE VAPORS and

LIQUIDS.

NOTE: Suggested time intervals shown are for average usage which is considered six (6) to eight (8) operational (running) hours per day.

Clean lint drawer and screen every third or fourth load.

NOTE: Frequency can best be determined at each location.

DAILY

(beginning) of each work shift.

Clean lint from the lint drawer and screen. Inspect lint screen and replace if torn.

WEEKLY

Clean lint accumulation from lint chamber, thermostat, and microprocessor temperature sensor (sensor bracket) area.

WARNING: To avoid the hazard of electrical shock, discontinue electrical supply to dryer.

STEAM DRYERS

Clean steam coil fins using compressed air and a vacuum cleaner with brush attachment.

NOTE: When cleaning steam coil fins, be careful not to bend the fins. If fins are bent, straighten by using fin comb which is available from local air conditioning supply houses.

90 DAYS

Remove lint from tumbler (basket), drive motors, and surrounding areas. Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment.

5

NOTE: To prevent damage, avoid cleaning, and/or touching ignitor andflame-probeassembly.

Remove lint accumulation from inside control box and at rear area behind control box.

EVERY 6 MONTHS

Inspect and remove lint accumulation in customer furnished exhaust duct work system and from dryer’s internal exhaust ducting.

WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCT WORK CAN CREATEAPOTENTIALFIRE HAZARD.

WARNING: DO NOT OBSTRUCT THE FLOW OF COMBUSTION and VENTILATION AIR. CHECK CUSTOMER FURNISHED BACK DRAFT DAMPER IN EXHAUST DUCT WORK. INSPECT and REMOVE ANY LINTACCUMULATION WHICH CAN CAUSE DAMPER TO BIND or STICK.

NOTE: A back draft damper that is sticking partially closed can result in slow drying and shut down of the heat circuit safety switches or thermostats.

NOTE: When cleaning dryer cabinet(s), avoid using harsh abrasives. Aproduct intended for the cleaning of appliances is recommended.

B. ADJUSTMENTS

7 DAYS AFTER INSTALLATION and EVERY 6 MONTHS THEREAFTER

Inspect bolts, nuts, screws, (bearing set screws), nonpermanent gas connections (unions, shut-offvalves, orifices, and ground connections). Motor and drive beltsshould be examined. Cracked or seriously frayed beltsshould be replaced. Tighten looseV-beltswhen necessary. Complete operational check of controls and valves. Complete operational check ofALL safety devices (door switch, lint drawer switch, sail switch, burner andhi-limitthermostats).

C. LUBRICATION

The motor bearings, idler bearings, and tumbler (basket) bearings are permanently lubricated.

NO LUBRICATION IS NECESSARY.

The impellor (fan) shaft bearings should be lubricated every three (3) months.

6